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freesewing/markdown/dev/tutorials/pattern-design/avoiding-overlap/en.md
Joost De Cock b34a2ee2ed feat: Flat import of markdown repo
This is a flat (without history) import of (some of) the content
from our markdown module.

We've imported this without history because the repo contains our
blog posts and showcases posts content prior to porting them to strapi.

Since this contains many images, it would balloon the size of this repo
to import the full history.

Instead, please refer to the history of the (archived) markdown repo
at: https://github.com/freesewing/markdown
2021-08-25 16:09:31 +02:00

1.5 KiB

title order
Avoiding overlap 220

While you've only drawn the end of one strap, it's pretty obvious they overlap. Which is a big no-no in sewing patterns, so you're going to have to address that.

Specifically, we're going to rotate our strap out of the way until it no longer overlaps. The rest of your bib should stay as it is, so let's start by making a list of points we need to rotate:

let rotateThese = [
  "edgeTopLeftCp",
  "edgeTop",
  "tipRight",
  "tipRightTop",
  "tipRightTopStart",
  "tipRightTopCp1",
  "tipRightTopCp2",
  "tipRightTopEnd",
  "tipRightBottomStart",
  "tipRightBottomCp1",
  "tipRightBottomCp2",
  "tipRightBottomEnd",
  "tipRightBottom",
  "top",
  "topCp2"
];

Now you can rotate them. How far? Until the strap no longer overlaps:

while (points.tipRightBottomStart.x > -1) {
  for (let p of rotateThese) points[p] = points[p].rotate(1, points.edgeLeft);
}

We're rotating all the points in the rotateThese array around the edgeLeft points. We're using increments of 1 degree until the tipRightBottomStart point is 1mm passed the center of our bib.

While we're add it, let's add a point where the closure's snap should go:

points.snapLeft = points.top.shiftFractionTowards(points.edgeTop, 0.5);

Now let's mirror this on the other side, and replace our neck and rect paths with a new path.